Definitely Cruise control “detects” 100mph in UK!
There are some MSA exit slip roads where this happens. Not just ID3, I've seen 100 detected in work hire cars from other brands too. If you have speed limit preview turned on and having to cancel it bothers you, then you can just turn it permanently off.
ID.3 Family Pro Performance (Jan 22). Also an ID.4 Max. Ohme Home Pro charger.